(A) An approved backflow prevention device shall be installed on each water service line to a customer's water system when, in the judgment of the Superintendent, actual or potential hazards to the public water supply system may exist.
(B) An approved backflow prevention device shall be installed on each water service line to a customer's water system where the following conditions exist:
(1) Premises having an auxiliary water system, unless such auxiliary water system is accepted as an additional source by the Superintendent and the source is approved by the agency and local authority.
(2) Premises where any substance(s) exists which can create an actual or potential hazard to the public water supply system.
(3) Premises having internal cross-connections that, in the judgment of the Superintendent, are not correctable or intricate plumbing arrangements which make it impractical to determine whether or not cross-connections exist.
(4) Premises where, because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make a complete cross-connection survey.
(5) Premises having a repeated history of cross-connections being established or re-established.
(C) An approved backflow prevention device shall be installed on each water line to a customer's water system servicing, but not necessarily limited to, the following types of facilities unless the Superintendent determines that no actual or potential hazard to the public water supply system exists:
(1) Hospital, mortuaries, clinics, nursing homes.
(2) Laboratories.
(3) Sewage treatment plants, sewage pumping stations or storm water pumping stations.
(4) Food or beverage processing plants.
(5) Fertilizer/chemical plants.
(6) Metal plating industries.
(7) Petroleum processing or storage plants.
(8) Radioactive material processing plants or nuclear.
(9) Car washes.
(10) Lawn sprinkler systems
(Ord. O-97-06, passed 10-27-97)